How do I know if the diaphragms need replacement

This OEM hot surface ignition module provides precise 120V AC power regulation to ensure reliable startup and consistent heat cycles

Is a set screw included

The compact footprint includes a 1/8" NPT pressure tap with a plug for simplified manifold pressure adjustments during commissioning

it is performing its primary safety function to prevent heat exchanger cracks

Carrier EA36YP288 TXV Valve 320734-701 How do I know ifThe Carrier EA36YP288 is a high precision R410A TXV valve engineered to optimize refrigerant metering and evaporator loading in residential and light commercial HVAC systems. This thermal expansion valve utilizes a robust bi metal composition to provide exceptional durability during rigorous thermal cycling. By continuously monitoring superheat at the coil outlet, the EA36YP288 TXV prevents liquid floodback and ensures the compressor remains protected